Home / 1,187,000.61-1,638,141.21-670,575.39

Finding the Fourth Proportional to 1,187,000.61, 1,638,141.21 and 670,575.39

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Solution

The fourth proportional to 1,187,000.61, 1,638,141.21 and 670,575.39 is: 925,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,000.61 : 1,638,141.21 = 670,575.39 : x
  2. Step 2: Convert to fraction form
    1,187,000.61/1,638,141.21 = 670,575.39/x
  3. Step 3: Cross multiply
    1,187,000.61x = 1,638,141.21 × 670,575.39
  4. Step 4: Simplify right side
    1,187,000.61x = 1,098,497,180,770.82
  5. Step 5: Solve for x
    x = 1,098,497,180,770.82/1,187,000.61
  6. Step 6: Final answer
    x = 925,439.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.